Improvement in water-elevators



animi sam BERNHARD VATEE, 0E NEW- YoEK, N.'

@am can.

Lette-rs Patent No. 107 ,426, rr/.tefl September 13, 1870.

IMPROVEMENT IN' WATER-ELEVATORS.

The Schedule referredA to in these Letters Patent and making part of thesame To all whom it may concern Be it known vthatI, BERNHARD VATEE, ofthe city of NewYork,iu the `county and I; State of New York, haveinvented a. new and improved iVater-Eleratou andl do hereby declarethat'the following is a full, clear, and exact descriptionthercof,^whichlwill enable Yothers'sltilled inthe art-to makeaud use thesame, reference heiugjfllad tothe accompanying drawing forming part ofthis specification.

Figure 1 represents a side elevation, partly in section, of my improvedwater-elevator.

Figure 2 is a'trausverse section through the spiral wheel. u Similarletters of reference indicatecorrespomling parts.

rlC-he invention consists-in' so constructing the spirai wheel 'that theconvolutions of the same shall graduall y or successively diminishiuwidth or capacity for containing air and water, from the'cent-ralshaft ou'tward.

The object of this peculiar construction is to adapt the. wheeltoelevate a gi'eater'quantity of water, sincet'hecuhical capacity ofeach separate convolution is tobe equal to everyother.

vA in the drawing represents aspira-l wheel, mounted upon a tubularaxle, B, which-has its bearings in suitable fiume, C.

The wheel Bis made to constitute one continuous spiral channel, a., .hybeing provided with a continuous partition', l), as shown in iig. 2..

The-drawing represents a whe-el with twelve convolutions. This numbercan he increased or diminished at pleasure. The convolutions becomebroader toward the center of lthe wheel, as indicated lin iig. 1, sol

that those of lesser diameter will bc -able to contain the same amountof liquid as the others.

One end of the axle B is closed. vThe other end communicates with thedischargepipe D, which may be placed vertically, horizontally, or iuanyother suitable posit-ion.

The outer end'of the channel a" is open, and constitutes a bucket fortaking up the water or other liquid. Rotzu-ymotion, in thc direction ofthcarrows, iig. 2,

is then imparted to the axle and wheel by suitable mechanism. l Thewheel is to about two-thirds .of its height immersed in thcliqnid whichis to be conveyed. As it is revolved, t-he wheel will gradually conveythe liquid toward its'center, but in each convolution 4oi' thespiral,'theliquid will sta-ud ouiy'proportionately atthe same height towhich the wheel is immersed. l lhere will, consequently, be anair-spaceleft in thev upper partl oi' each convolution, as is clearlyshown in fig,.- 2, and eachconvolution,owing to the difference in Width,will contain as much water and air as each of the others. i l y As thcwneelfis being revolved, its open end will,

during two-thirds of each revolution, take up .liquid 'andforcc it int-othe channel, expelling thereby au equal amount from thecentralcouvolution in theuaxle and discharge-pipe.. lheremainingone-third revolu-l tion causes asimilar displacement-of air. The col#umn of liquid in the discharge-pipe alone will,`\vith its-weight, tendto counteract'the action of the wheel,

while the liquidv within .the wheel, bearing with its weight toward thecenter, will exert aconstantpres'sure in the direction in which theliquid is to beconandin planes parallel to said shaft, substantially asherein shown and described, and' for the purpose speciiied.

`Witnesses:

A. V. BEI'EsEs,

BER-N H'ARD VATER.

